Are you certain that the cranks were'nt OFMEGA? I purchased a early 80s Bambino Benotto with 140mm 3 arm OFMEGA cranks with double chainrings. Buried in my garage, I have a OFMEGA brochure that illustrates two versions of the crank.
If you stumble upon that Kids Cinelli, give me a holler.
"Have at least one that takes after dad"
Fremont No. Cal.